BottkeW. F., NolanM. C., GreenbergR., and KolvoordR. A.1994. Collisional lifetimes and impact statistics of near-earth asteroids, in Hazards due to comets and asteroids, edited by GehrelsT. Tucson: The University of Arizona Press. pp. 337–357.

Wagner W. and Pruss A.2002. The IAPWS formulation 1995 for the thermodynamic properties of ordinary water substance for general and scientific use. Journal of Physical and Chemical Reference Data31: 387–535.